发明名称 |
Variable displacement solenoid control |
摘要 |
Methods are provided for improved control of valve activation/deactivation mechanisms. One example method comprises, adjusting an electromechanical actuator to actuate cylinder valve deactivation/activation mechanisms. The actuator is operated at multiple levels based on engine operating conditions. |
申请公布号 |
US8931443(B2) |
申请公布日期 |
2015.01.13 |
申请号 |
US201313830205 |
申请日期 |
2013.03.14 |
申请人 |
Ford Global Technologies, LLC |
发明人 |
Doering Jeffrey Allen;Rollinger John Eric;Zdravkovski Danny;Willard Karen |
分类号 |
F01L9/04;F01L13/00 |
主分类号 |
F01L9/04 |
代理机构 |
Alleman Hall McCoy Russell & Tuttle LLP |
代理人 |
Voutyras Julia;Alleman Hall McCoy Russell & Tuttle LLP |
主权项 |
1. An engine method, comprising:
adjusting an electromechanical actuator to actuate a cam profile switching mechanism, including operating the electromechanical actuator at a first level without a valve transition, operating the electromechanical actuator at a second level without a valve transition in response to an increased potential for a valve transition, and operating the electromechanical actuator at a third level inducing a valve transition, the second level between the first and third levels. |
地址 |
Dearborn MI US |